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MaRussiya [10]
3 years ago
8

If the sum of a number and four is multiplied by two, the result is 28. What is the number?

Mathematics
2 answers:
Marta_Voda [28]3 years ago
7 0

Answer:

10

Step-by-step explanation:

The sum of a number and 4 is multiplied by 2, and the result is 28. In other words, letting the unknown number be x:

2(x+4)=28

Solve for x. Divide both sides by 2:

x+4=14

Subtract 4 from both sides:

x=10

So, our unknown number is 10.

And we're done!

JulijaS [17]3 years ago
4 0

Answer:

10

Step-by-step explanation:

Let the required number be x

2(x+4) =28

x + 4 = 28/2

x + 4 = 14

x = 14 - 4

x = 10

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